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  1. #1
    Junior Member Teacher
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    Sep 2002
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    Default ampliful meu audio...intra in clip...prea repede....

    Salutari...am si eu o problema cu un amplificator audio home-made, facut dupa un proiect de AV-400 modificat (12 mosfeti pe canal si alimentat la +-88vcc in loc de 70, iar partea de putere, mosfeti si rezistente, montate "on air", direct pe radiator)
    aceasta statie alimenteaza la mine 2 difuzoare HP-18W, si primeste semnal dintr-un filtru activ, cu frecventa de taiere 400hz...cam astea-s prezentarile...acum vin problemele:....
    la ultima sonorizare..a intrat in clip de la 50-55%volum ...intai un canal....am mers cu celalalt o vreme dupa care a intrat si ala....am oprit statia...pana s-au stins toate ledurile...si cand am pornit-o iar... s-a aprins clipul de pe la 20% volum...

    mentionez ca a mers foarte bine si la mine si la fostul proprietar, care de altfel l-a si facut...

    poate stie careva....

    ps.. ce efect poate avea asupra amplifului, functionarea intr-o retea care are sub 220V ?
    Teach me...please !

  2. #2
    Junior Member Teacher
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    Mar 2003
    Location
    Reghin, Mures
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    Default Pote ajuta

    Intrarea in clipping este datorata in mare parte sursei de alimentare si faptul ca spui ca nu ai 220 V ma face sa ma gandesc ca in cazul tau este motivul principal.
    De obicei se intampla cand sursa cedeaza si nu mai poate sustine puterea necesara amplificarii.

    Rezultatele pentru amplif nu sut grave, in schimb se lasa urat la difuzoare, asa ca ai grija, in special pe cele de medii/inalte.

    Sper sa te ajute,
    Bafta.
    Dm800SE,Opticum Dm3800, Inverto Black Ultra /0.9 Offset Fe, 1.2 TRIAX/Al

  3. #3
    Silver Member Expert
    Join Date
    Jan 1970
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    Banat.Ro
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    Video: Vu+Uno (HDD 80Gb) /offset 1.2 H-H/42E<=>30W;
    Optibox Gekko Cable HD
    Audio: Harman Kardon HK680+Monitor Audio B2+WD Elements Play (2Tb)

 

 

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